# das Actinium

das Actinium is a German noun meaning “chemical element actinium”. Forms: des Actiniums.

## Forms

- Genitive: des Actiniums

## In other languages

- Русский: хим. химический элемент с атомным номером 89, обозначается химическим символом Ac, актиний
- Українська: актиній

## Meanings

1. _no plural_ chemical element actinium (atomic number 89)
2. actinium
   - Actinium kommt in geringen Mengen in Uranerzen vor.

## Examples

- Actinium ist ein radioaktives Element. — Actinium is a radioactive element.
- Actinium wurde 1899 von André-Louis Debierne entdeckt. — Actinium was discovered by André-Louis Debierne in 1899.
- Actinium verdampft bei 3198 °C. — Actinium vaporizes at 3,198°C.
- Die Halbwertszeit von Actinium-224 ist 2,7 Stunden. — The half life of actinium-224 is 2.7 hours.

---
Sources: Meanings and forms from Wiktionary (CC BY-SA 4.0); example sentences from Tatoeba (CC BY 2.0 FR).
URL: https://wordwide.space/de-en/wort/Actinium